Home / 3,178,623.66-4,386,555.48-1,728,328.89

Finding the Fourth Proportional to 3,178,623.66, 4,386,555.48 and 1,728,328.89

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Solution

The fourth proportional to 3,178,623.66, 4,386,555.48 and 1,728,328.89 is: 2,385,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,623.66 : 4,386,555.48 = 1,728,328.89 : x
  2. Step 2: Convert to fraction form
    3,178,623.66/4,386,555.48 = 1,728,328.89/x
  3. Step 3: Cross multiply
    3,178,623.66x = 4,386,555.48 × 1,728,328.89
  4. Step 4: Simplify right side
    3,178,623.66x = 7,581,410,563,671.82
  5. Step 5: Solve for x
    x = 7,581,410,563,671.82/3,178,623.66
  6. Step 6: Final answer
    x = 2,385,123.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.